{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC34978AES","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC34978AES","canonicalUrl":"https://icboms.com/nxp/MC34978AES","factsUrl":"https://icboms.com/api/mcp/products/MC34978AES","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors MC34978AES, specialized interface IC for multiple switch detection, 32-VFQFN Exposed Pad, Tray, 4.5V–36V supply, Surface Mount, Wettable Flank.","salesMarkdown":"## Switch-detection interface in a 32-QFN package The NXP MC34978AES is a specialized interface IC for multiple switch detection — think banked switch inputs on a control panel or automotive body module where you need to read a row of buttons or limit switches over a single serial link. ## Package and board-fit details Housed in a 32-VFQFN exposed-pad package (5x5 mm body, supplier device package 32-QFN-EP), the MC34978AES has a wettable flank option on the package terminals — this means the solder fillet climbs the side of the QFN, giving a visible joint after reflow that AOI can inspect, unlike a standard QFN where the joint is hidden under the body. ## Lifecycle and compliance snapshot RoHS3 compliant (2011/65/EU + 2015/863), with no exemptions claimed — no lead, mercury, cadmium, or phthalates above the threshold limits.","metaTitle":"NXP MC34978AES Multiple Switch Detection IC, 32-QFN, Active","metaDescription":"NXP MC34978AES — specialized interface IC for multiple switch detection. 4.5V–36V supply, 32-QFN-EP (5x5) with wettable flank. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tray","Applications":"Multiple Switch Detection","Mounting Type":"Surface Mount, Wettable Flank","Package / Case":"32-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 36V","Supplier Device Package":"32-QFN-EP (5x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.45","stockQuantity":26,"priceTiers":[{"qty":1,"price":"$5.45000","currency":"USD"},{"qty":10,"price":"$4.89700","currency":"USD"},{"qty":25,"price":"$4.62920","currency":"USD"},{"qty":80,"price":"$4.01188","currency":"USD"},{"qty":230,"price":"$3.80613","currency":"USD"},{"qty":490,"price":"$3.41522","currency":"USD"},{"qty":980,"price":"$2.88032","currency":"USD"},{"qty":2450,"price":"$2.73630","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ed0856cce69a5ade085ab0cf9e92a4dc.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC34978AES","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC34978AES when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}